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作者:

Li, Zhiqiang (Li, Zhiqiang.) | Wang, Decheng (Wang, Decheng.) | Wang, Liping (Wang, Liping.) | Jiang, Chao (Jiang, Chao.) | Zhou, Leyu (Zhou, Leyu.) | Zhou, Zhiguang (Zhou, Zhiguang.) | Wang, Huizhen (Wang, Huizhen.) | Zhai, Yuewen (Zhai, Yuewen.)

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EI Scopus SCIE

摘要:

The evolution of the microstructure and the kinematic model during solution treatment of a powdered metal-lurgical Ni-based material were investigated in this work. The results showed that the solvus temperature of the gamma ' phase was as high as 1170 degrees C-1200 degrees C. An improved JMAK model was used to describe the gamma ' dissolution behaviour over a continuous temperature range. In the model, the constants were regarded as the equations for temperature, and the correlation coefficient R was 0.9994. The grain growth behaviour below 1200 degrees C was different from that above 1200 degrees C; therefore, the raw material was well understood with a segmented model, and R was 0.9771. During the cooling stage, as the cooling rate was increased, the size of gamma ' decreased quickly at the beginning and then entered a stable phase; finally, it exhibited secondary reduction. As the gamma ' size decreased, the hardness of the alloy first increased and then changed slowly. A cubic polynomial was established to calculate the size of gamma ' at different cooling rates, and R was 0.97367. A new hardness prediction model was used to predict the hardness with different values of gamma ' for the alloy, and R was 0.9710.

关键词:

Kinematic model Grain growth Dissolution and precipitation behaviour Ni-based superalloy ? ? phase

作者机构:

  • [ 1 ] [Li, Zhiqiang]Tsinghua Univ, Dept Mech Engn, 30 Shuangqing Rd, Beijing 100084, Peoples R China
  • [ 2 ] [Wang, Liping]Tsinghua Univ, Dept Mech Engn, 30 Shuangqing Rd, Beijing 100084, Peoples R China
  • [ 3 ] [Li, Zhiqiang]Beijing Res Inst Mech & Elect Technol Co Ltd, CAM, 18 Xueqing Rd, Beijing 100083, Peoples R China
  • [ 4 ] [Jiang, Chao]Beijing Res Inst Mech & Elect Technol Co Ltd, CAM, 18 Xueqing Rd, Beijing 100083, Peoples R China
  • [ 5 ] [Zhou, Leyu]Beijing Res Inst Mech & Elect Technol Co Ltd, CAM, 18 Xueqing Rd, Beijing 100083, Peoples R China
  • [ 6 ] [Zhou, Zhiguang]Beijing Res Inst Mech & Elect Technol Co Ltd, CAM, 18 Xueqing Rd, Beijing 100083, Peoples R China
  • [ 7 ] [Wang, Huizhen]Beijing Res Inst Mech & Elect Technol Co Ltd, CAM, 18 Xueqing Rd, Beijing 100083, Peoples R China
  • [ 8 ] [Zhai, Yuewen]Beijing Res Inst Mech & Elect Technol Co Ltd, CAM, 18 Xueqing Rd, Beijing 100083, Peoples R China
  • [ 9 ] [Li, Zhiqiang]China Acad Machinery Sci, Technol Grp, 2 Shouti South Rd, Beijing 100044, Peoples R China
  • [ 10 ] [Wang, Decheng]China Acad Machinery Sci, Technol Grp, 2 Shouti South Rd, Beijing 100044, Peoples R China
  • [ 11 ] [Zhou, Zhiguang]Beijing Univ Technol, Inst Adv Mfg & Intelligent Technol, 100 Pingleyuan, Beijing 100124, Peoples R China

通讯作者信息:

  • [Zhai, Yuewen]Beijing Res Inst Mech & Elect Technol Co Ltd, CAM, 18 Xueqing Rd, Beijing 100083, Peoples R China;;

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来源 :

MATERIALS CHARACTERIZATION

ISSN: 1044-5803

年份: 2023

卷: 199

4 . 7 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:26

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